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  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Nodejs MNIST model Deployment\n",
    "\n",
    " * Wrap a nodejs tensorflow model for use as a prediction microservice in seldon-core\n",
    "   * Run locally on Docker to test\n",
    " \n",
    "## Depenencies\n",
    "\n",
    " * [Helm](https://github.com/kubernetes/helm)\n",
    " * [Minikube](https://github.com/kubernetes/minikube)\n",
    " * [S2I](https://github.com/openshift/source-to-image)\n",
    " * pip install grpcio-tools\n",
    " * node (version>=8.11.0)\n",
    " * npm\n",
    "\n",
    "## Train locally using npm commands\n",
    " This model takes in mnist images of size 28x28x1 as input and outputs an array of size 10 with prediction of each digits from 0-9"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!make train && make clean_build"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Training creates a model.json file and a weights.bin file which is utilized for prediction"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Prediction using REST API on the docker container"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!s2i build . seldonio/seldon-core-s2i-nodejs:0.2-SNAPSHOT node-s2i-mnist-model:0.1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!docker run --name \"nodejs_mnist_predictor\" -d --rm -p 5000:5000 node-s2i-mnist-model:0.1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!cd ../../../wrappers/testing && make build_protos"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Send some random features that conform to the contract"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!python ../../../wrappers/testing/tester.py contract.json 0.0.0.0 5000 -p -t"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!docker rm nodejs_mnist_predictor --force"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Prediction using GRPC API on the docker container"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!s2i build -E ./.s2i/environment_grpc . seldonio/seldon-core-s2i-nodejs:0.2-SNAPSHOT node-s2i-mnist-model:0.2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!docker run --name \"nodejs_mnist_predictor\" -d --rm -p 5000:5000 node-s2i-mnist-model:0.2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!cd ../../../wrappers/testing && make build_protos"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Send some random features that conform to the contract"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!python ../../../wrappers/testing/tester.py contract.json 0.0.0.0 5000 -p -t --grpc"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!docker rm nodejs_mnist_predictor --force"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Test using Minikube\n",
    "\n",
    "**Due to a [minikube/s2i issue](https://github.com/SeldonIO/seldon-core/issues/253) you will need Minikube version 0.25.2**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!minikube start --memory 4096 --feature-gates=CustomResourceValidation=true --extra-config=apiserver.Authorization.Mode=RBAC"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!kubectl create clusterrolebinding kube-system-cluster-admin --clusterrole=cluster-admin --serviceaccount=kube-system:default"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!helm init"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!kubectl rollout status deploy/tiller-deploy -n kube-system"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!helm install ../../../helm-charts/seldon-core-crd --name seldon-core-crd  --set usage_metrics.enabled=true\n",
    "!helm install ../../../helm-charts/seldon-core --name seldon-core "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!eval $(minikube docker-env) && s2i build . seldonio/seldon-core-s2i-nodejs:0.2-SNAPSHOT node-s2i-mnist-model:0.1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!kubectl create -f nodejs_mnist_deployment.json"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Wait until ready (replicas == replicasAvailable)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!kubectl get seldondeployments seldon-deployment-example -o jsonpath='{.status}' "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!cd ../../../util/api_tester && make build_protos "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!python ../../../util/api_tester/api-tester.py contract.json \\\n",
    "    `minikube ip` `kubectl get svc -l app=seldon-apiserver-container-app -o jsonpath='{.items[0].spec.ports[0].nodePort}'` \\\n",
    "    --oauth-key oauth-key --oauth-secret oauth-secret -p"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!minikube delete"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "!make clean"
   ]
  }
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